El Balsa Mine

Occurrence in Alajuela, Costa Rica with commodities Gold, Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10007937
MRDS ID CS00176
Record type Site
Current site name El Balsa Mine
Alternate or previous names Mina De San Rafael

Geographic coordinates

Geographic coordinates: -84.46382, 9.96915 (WGS84)

Site location context

Political divisions (FIPS codes)

Alajuela(province)

Costa Rica(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Costa Rica Alajuela

Comments on the location information

  • AT THE JUNCTION BETWEEN LA MINITA AND COMPANIA VEINS, ON THE OREAMUNOS LODE.

Commodities

Commodity Importance
Gold Primary
Silver Primary

Analytical data

Result ACCORDING TO REITZ (1902), ORE ASSAYS $600-$4000/T AU
Result CHAVES (1974), CITING MELLIS (1890), HAS GRADES OF 883.3 G/T AU AND 326.69 G/T AG FOR A "CROSS SAMPLE" (VEIN?), AND 15.55 G/T AU AND 18.66 G/T AG FOR DUMP SAMPLES.

Mineral occurrence model information

Model code 151
USGS model code 25d
Deposit model name Epithermal vein, Sado
Mark3 model number 28

Nearby scientific data

(1) -84.46382, 9.96915

Economic information

Ore body information

  • General form VEIN
    Strike N 10 E - N 15 E
    Dip 80 SW

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1825

Mining district

District name Aguacate District

Reference information

Bibliographic references

  • Deposit

    REITZ, M. F., 1902, THE GOLD MINES OF COSTA RICA: ENG. MIN. J., V. 74, NO. 7, P. 211.

  • Deposit

    CHAVES, R., 1974, THE AGUACATE MINES OF COSTA RICA; GEOLOGY AND APPRAISAL: COSTA RICA, DIR. GEOL. MINAS PETROL., INF. TEC. NOTAS GEOL., ANO 12, NO. 57, P. 4,5.

  • Deposit

    U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.

General comments

Subject category Comment text
Deposit LA MINITA VEIN STRIKES N 10 E TO N 15 E, DIPS 80 SW.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1986 Howe, Stephen S. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.